ARP - The world leader in fastener technology offers the best and most reliable engine fastener kits for Land Rover 3.9L, 4.0L, 4.2L & 4.6L V8 applications. ARP fasteners are centerless ground, heat treated prior to thread rolling and machining and designed to exceed the OEM fasteners in strength and durability. Optimum design, enhanced reliability and increased strength are the main attributes of ARP’s High Performance and Pro Series fastener kits.
This Engine Main Stud Kit features a premium grade 8740 material that is rated at 200,000 PSI tensile strength. Each kit includes the necessary studs, premium grade chrome moly nuts and washers for the application and a 1/2 oz. pack of ARP Ultra-Torque fastener assembly lubricant.
In this video we're going to touch base on an option you have if you're rebuilding your engine or doing head gaskets on a 4.0 / 4.6 Land Rover Engine.
And that is, essentially, a replacement set of studs instead of head bolts.
Now you know a lot of the newer engines have the torque to yield head bolts, which you see a lot now on aluminum head engines.
You're dealing with a high expansion and contraction rate which is why you need that style.
But you find it if you look if you see a racing engine torn down a lot of them will have studs.
The studs are a little bit more secure.
They cost a little bit more but they definitely do a better job.
Watch Doug, our Land Rover Master Technician, install ARP Engine Head Bolts using Kit ARP4301 on a Land Rover 4.0/4.6 Engine.
Doug also includes discussion of how to properly torque in the studs.
To ensure parts fit your vehicle, please select your rover below.